I'm running 630cc siemens from usrt.. They are tightened all the way down and seem to fit in alright. I'm not running a spacer/washer or anything like that but the injectors themselves are loose. If i tug on the harness or just just grab the injector I can turn it, it rotates both in the intake manifold and the fuel rail. All of them do this and I checked, they're all pushed fully into the rail and mani.
Are you guys running spacers or anything, or do your injectors do this as well?
I assume that if I can rotate them by hand with ease, this will be a boost leak for sure as well as adding to my fueling issues.
Any suggestions?
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